TLS Online TPP Program

#Question id: 3927


An operon is __

#Unit 3. Fundamental Processes
  1. a set of genes whose transcription is controlled by a single promoter

  2. the site of repressor binding

  3. a protein that activates the transcription of a whole class of genes

  4. a multisubunit complex responsible for the splicing of exons

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TLS Online TPP Program

#Question id: 2993

#Unit 2. Cellular Organization

During meiosis, a defect occurs in a cell that results in the failure of spindle microtubules binding at the kinetochores. Which of the following statements describes the most likely result of such a defect?

TLS Online TPP Program

#Question id: 5413

#General Aptitude

I was travelling from my home to office. If half of my journey was on train, which is at a speed of 60km/hr. then my friend called me to join him in his car. Thus from the next station, I covered half of the remaining journey by his car at 30kh/hr. his car broke down after that, and we together travelled the rest by Rickshaw at 10km/hr. the average speed of me during my entire journey is?

TLS Online TPP Program

#Question id: 19823

#Unit 12. Applied Biology

The elicitors are recognized by receptor-like molecules present in resistant plants. This recognition initiates several biochemical reactions such as

1. Phytoalexin biosynthesis

2. Cell wall reinforcement

3. Release of hydrolytic enzymes

4. Rapid cell death

Which of the following is/are correct?

TLS Online TPP Program

#Question id: 33694

#Unit 2. Cellular Organization

Find true & false statements
A. Gene clusters mispairing between nonallelic loci can cause unequal crossing over. 
B. Unequal crossing over produces a deletion in one recombinant chromosome and a corresponding duplication in the other.
C. Different thalassemias are caused by various duplication that eliminate a- or b-globin genes.

TLS Online TPP Program

#Question id: 1098

#Unit 4. Cell Communication and Cell Signaling

Which of the following is the most plausible explanation for why an animal cell would be unable to reduce the Ca2+ concentration in its cytosol compared with the extracellular fluid?